Installation
900697-01 01/2017
Innovative Hearth Products
DRT4000 Series Direct-Vent Gas Fireplaces
43
Figure 38 - Air Shutter Adjustment Rod
1.
Adjust the air shutters per instructions in
Figures 38A and 38B
and
Table 29
.
2.
Light the fireplace. Follow the lighting procedure on the lighting label in the control compartment or
Pages 65-68
.
3.
Allow the burner to operate for at least fifteen (15) minutes while observing the flame continuously to ensure that
the proper flame appearance is achieved
(
Figure 39
)
. If the following conditions are present, adjust accordingly.
• If flame appears weak or sooty, adjust the air shutter, incrementally, to a more open position until the proper
flame appearance is achieved.
• If flame remains blue, adjust the air shutter, incrementally, to a more closed position until the proper flame
appearance is achieved.
4.
When satisfied that the burner flame appearance is normal, reinstall the lower control compartment door, then
proceed to finish the installation.
Figure 39 - Burner Flame Appearance
Table 29 - Main Burner Shutter Opening—Factory Setting
20.
Install the Hood (in Traditional Models)
NOTE:
Traditional models must have a hood installed prior to operation.
1.
Install the hood by sliding it into the slots on the lower edge of the cabinet top.
NOTE:
To install the non-combustible finish material flush with the top of the hood, the hood must be installed before
installing the finish material. If finish material is installed flush with the top edge of the hood, the hood cannot be
removed.
Models
Natural Gas
Propane
Front Air Shutter
Rear Air Shutter
Front Air Shutter
Rear Air Shutter
All
1/16”
(1.6 mm)
1/8”
(3.2 mm)
1/8”
(3.2 mm)
1/8”
(3.2 mm)
Air Shutter
Adjustment
Rod Down
(Fully-Open
Position)
Burner
Tube
Adjustment
Rod Up
(Fully-Closed
Position)
Adjustment
Set-Screw
Figure 38A - FRONT Air Shutter Setting
Figure 38B - REAR Air Shutter Setting
The adjustment rod for the front air shutter is
located in the lower control compartment. See
Tables 28 and 29
for the proper adjustment setting.
The adjustment lever for the rear air shutter is located in
the lower control compartment. See
Tables 28 and 29
for
the proper adjustment setting.
Closed
Open
Closed
Open
Rear Air Shutter Adjustment Lever
